StringSorting

using System;

class StringSorting
{
    static void Main()
    {
        int n, minKey;
        string change;
        string[] arr = { "cow", "elephant", "doggy", "tv", "bicycle", "I am insane" };
        n = arr.Length;

        Console.WriteLine(string.Join(",", arr));
        for (int a = 0; a < n -1; a++)
        {
            minKey = a;
            for (int current = a + 1; current < n; current++)
            {
                if (arr[current].Length < arr[minKey].Length)
                {
                    minKey = current;
                }
            }
            change = arr[minKey];
            arr[minKey] = arr[a];
            arr[a] = change;
        }

        Console.WriteLine(string.Join(",", arr));
    }
}